Give user input for batch file via c# code

Question

I have a batch file which is asking for some user input text in the middle of that process. I need to run this batch file through c# code. I cannot change the bat file. So the option having command line arguments also is not working for me. Is there any way that i can provide the input when it prompts?

Answer 1

I assume you are using Process.Start to run the batch script. In this case you can easily write to the script's standard input, as if you were typing directly on the commandline:

Process process = new Process();
process.StartInfo.FileName = "script.bat";
process.StartInfo.RedirectStandardInput = true;
process.StartInfo.UseShellExecute = false;
process.Start();
process.StandardInput.WriteLine("whatever the parameter is...");

If necessary, you can wait for the script to ask for the input by setting:

process.StartInfo.RedirectStandardOutput = true;

and "listening" to its standard output using the process.StandardOutput.Read(); and similar methods